attachment: Support perl 5.8's buggy version of CGI.pm.

[ikiwiki.git] / IkiWiki / Plugin / attachment.pm

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index ed1cd61fe567c3d5cf845e5c647850de8556aa26..ef6d79a9c52a1db7006d223730a1636c6ab71bf6 100644 (file)
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -21,6 +21,8 @@ sub formbuilder_setup (@) { #{{{
        my $q=$params{cgi};
 
        if (defined $form->field("do") && $form->field("do") eq "edit") {
+               # Add attachment field, set type to multipart.
+               $form->enctype(&CGI::MULTIPART);
                $form->field(name => 'attachment', type => 'file');
                # These buttons are not put in the usual place, so
                # are not added to the normal formbuilder button list.
@@ -87,9 +89,17 @@ sub formbuilder (@) { #{{{
                # This is an (apparently undocumented) way to get the name
                # of the temp file that CGI writes the upload to.
                my $tempfile=$q->tmpFileName($filename);
-               
-               if (! defined $tempfile) {
-                       error("failed to determine temp filename");
+               if (! defined $tempfile || ! length $tempfile) {
+                       # perl 5.8 needs an alternative, awful method
+                       if ($q =~ /HASH/ && exists $q->{'.tmpfiles'}) {
+                               foreach my $key (keys(%{$q->{'.tmpfiles'}})) {
+                                       $tempfile=$q->tmpFileName(\$key);
+                                       last if defined $tempfile && length $tempfile;
+                               }
+                       }
+                       if (! defined $tempfile || ! length $tempfile) {
+                               error("CGI::tmpFileName failed to return the uploaded file name");
+                       }
                }
 
                $filename=IkiWiki::titlepage(
@@ -142,7 +152,8 @@ sub formbuilder (@) { #{{{
                                if (! defined $fh || ! ref $fh) {
                                        # even that doesn't always work,
                                        # fall back to opening the tempfile
-                                       open($fh, "<", $tempfile) || error("failed to open $tempfile: $!");
+                                       $fh=undef;
+                                       open($fh, "<", $tempfile) || error("failed to open \"$tempfile\": $!");
                                }
                        }
                        binmode($fh);